VHPIDIRECT is supported by all the backends (mcode, LLVM or GCC) on any platform (GNU/Linux, Windows, macOs; amd64, aarch64, ppc64, etc.). However, current CI tests use LLVM only (on GNU/Linux and Windows). It would be interesting to add missing options: mcode, GCC and macOS.
Note that mcode supports VHPIDIRECT, but not wrapping the simulation. At the same time, there is currently no build with GCC on Windows.
VHPIDIRECT is supported by all the backends (mcode, LLVM or GCC) on any platform (GNU/Linux, Windows, macOs; amd64, aarch64, ppc64, etc.). However, current CI tests use LLVM only (on GNU/Linux and Windows). It would be interesting to add missing options: mcode, GCC and macOS.
Note that mcode supports VHPIDIRECT, but not wrapping the simulation. At the same time, there is currently no build with GCC on Windows.